This volume was written to help parents understand what their baby is likely to be feeling in the first year. It describes how the baby's sense of self develops, with intentionality, empathy, and recognition of the self. Babies want to be enthusiastically enjoyed and come into the world with a functioning mind, primed to communicate and learn quickly. These ideas are of fundamental importance for understanding babies. The main developmental achievements of the first year are considered, such as coping with separations and how thinking, self-esteem, and concern for others develop.